xmlrpc returns unexpected status

[BigBear]

Hi all I'm trying to use xmlrpc server, because of downloading data from web url to desktop (swing) application. I found XML-RPC and it seems to be great for my purpose. But when I'm trying to connect to xmlrpc, server returns following:

org.apache.xmlrpc.client.XmlRpcHttpTransportException: HTTP server returned unexpected status: Not Found
        at org.apache.xmlrpc.client.XmlRpcSunHttpTransport.getInputStream(XmlRpcSunHttpTransport.java:94)
        at org.apache.xmlrpc.client.XmlRpcStreamTransport.sendRequest(XmlRpcStreamTransport.java:152)
        at org.apache.xmlrpc.client.XmlRpcHttpTransport.sendRequest(XmlRpcHttpTransport.java:143)
        at org.apache.xmlrpc.client.XmlRpcSunHttpTransport.sendRequest(XmlRpcSunHttpTransport.java:69)
        at org.apache.xmlrpc.client.XmlRpcClientWorker.execute(XmlRpcClientWorker.java:56)
        at org.apache.xmlrpc.client.XmlRpcClient.execute(XmlRpcClient.java:167)
        at org.apache.xmlrpc.client.XmlRpcClient.execute(XmlRpcClient.java:137)
        at org.apache.xmlrpc.client.XmlRpcClient.execute(XmlRpcClient.java:126)

I followed manual for The XML-RPC Servlet and I wrote these lines into my web.xml

<web-app version="2.4"
		 xmlns="http://java.sun.com/xml/ns/j2ee"
		 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
		 xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
		 http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">

	<servlet>
		<servlet-name>EOTService</servlet-name>
		<servlet-class>services.EOTService</servlet-class>
		<init-param>
			<param-name>enabledForExtensions</param-name>
			<param-value>true</param-value>
			<description>Sets, whether the servlet supports vendor extensions for XML-RPC.</description>
		</init-param>
	</servlet>

	<servlet-mapping>
		<servlet-name>EOTService</servlet-name>
		<url-pattern>/service</url-pattern>
	</servlet-mapping>
</web-app>

my servlet looks like this:

package services;

import org.apache.xmlrpc.*;
import org.apache.xmlrpc.common.*;
import org.apache.xmlrpc.server.*;
import org.apache.xmlrpc.webserver.*;

public class EOTService extends XmlRpcServlet {
	private boolean isAuthenticated(String pUserName, String pPassword) {
		return pUserName.equals("username") && pPassword.equals("password");
	}

	protected XmlRpcHandlerMapping newXmlRpcHandlerMapping() throws XmlRpcException {
		PropertyHandlerMapping mapping = (PropertyHandlerMapping) super.newXmlRpcHandlerMapping();

		AbstractReflectiveHandlerMapping.AuthenticationHandler handler =
			new AbstractReflectiveHandlerMapping.AuthenticationHandler() {
				public boolean isAuthorized(XmlRpcRequest pRequest) {
					XmlRpcHttpRequestConfig config = (XmlRpcHttpRequestConfig) pRequest.getConfig();

					return isAuthenticated(config.getBasicUserName(), config.getBasicPassword());
				}
			};

		mapping.setAuthenticationHandler(handler);

		try {
			mapping.addHandler("Calculator", Class.forName("services.Calculator"));
		} catch (ClassNotFoundException e) {
			e.printStackTrace();
		}
		return mapping;
	}
}

(instead of XmlRpcServlet.properties I added handler - I read that this method is fine - but I tried to create XmlRpcServlet.properties too and it's not working)...
and in the same package I have the class Calculator

package services;

public class Calculator {
	public int add(int a, int b) {
		return a + b;
	}

	public int sub(int a, int b) {
		return a - b;
	}
}

My client is simple, but in accordance with manual

try {
            XmlRpcClientConfigImpl config = new XmlRpcClientConfigImpl();
            config.setServerURL(new URL("http://127.0.0.1:8080/service"));
            config.setBasicUserName("username");
            config.setBasicPassword("password");
            config.setBasicEncoding("UTF-8");
            XmlRpcClient client = new XmlRpcClient();
            client.setConfig(config);
            Object[] params = new Object[]{new Integer(33), new Integer(9)};
            Integer result = (Integer)client.execute("Calculator.add", params);

            System.out.println("33 + 9 = " + result);
        } catch (java.net.MalformedURLException e) {
            System.out.println("MalformedURLException: " + e.getMessage());
        } catch (org.apache.xmlrpc.XmlRpcException e) {
            e.printStackTrace(System.out);
        }

When I put http://localhost:8080/eot/service in my browser, it returns exception:

HTTP method GET is not supported by this URL

but it should return this exception, so I think that it works ok.
Does somebody know, where the problem is? Thank you.

[mangstadt]

Look at the servlet URL in your client code...

config.setServerURL(new URL("http://127.0.0.1:8080/service"));

[BigBear]

Hi, I solved it with RESTful web service... thank you :-)